my car is a 88 tbi car but i put a 92 sd tpi in and now my volt meter isnt reading stays at 9 volts with no movement when the engine is reved up. can anyone tell me how to make it charge and have the gauge to work properly....also my oil pressure gauge stays pegged out when i start the car. when its not running it goes back 2 zero

 

check both tha wire to tha batery and also check tha plug for tha altenator to see if thts make a good tight fit i had tha plug go bad on both my 91 camaros and my 92 and tha 92 it was doing tha same thins and tha oil gage if it it at tha back of tha block could have nocked off tha wire puting tha in take back on it is at tha oil filter it mit be gumed up or busted just a good gess for now let me know more and i will see what ican do about finding that wireing diagram

 

Oil Pressure guage always pegs until after the startup IIRC. Oil sender is either on china wall just to driver side of distributor, or is located just above oil filter. The unit on china wall usually just 1 wire connector, the unit above oil filter is a 3 wire connector.

Maybe the alternator is bad - just about any auto parts store will test charging system for free in the car.

 

Oil pressure should never peg unless its really that high. Flick the IGN on and see if the gauge still pegs. If it does, the sender is bad

The alt could be faulty. Test it before removing. Unplug the connector and use a multimeter/test light to see if there is 12v on the two wires. Big red is battery 12v, small brown is 12v IGN only. Ill bet you wont have any voltage on the brown wire with the swap and your fans wont work. 88's used C207 pin D for alt/fan fuse while 90-92 cars used C100 G8

 

i think the sending unit is bad it is the three wire by oil filter. as far as the alt goes i repinned the brown wire to go in the bulk head the way my tbi car did and ran the tan and white wire that was in the tbi harness back to the 207 pin D. still no charge the only differenc was the brown wire out of the tbi harness did not connect with any other wires the tpi harness does connect into the relays next 2 brake booster. so if i run the brown wire into the car to the 207 should it charge with no problems gonna mess with it mon. or tues. next day off

 

think my sender is bad it is the three wire by the oil filter. the charging issue not sure yet it is a little cofusing cause not sure if i should try to wire it the way my tbi was or try moving the brown wire from the alt to the 207 pin D gonna play with it monday or tuesday when i'm off work and see what i can figure

 

should i run the brown wire inside the car to the c207 cause its not hot with the ignition on also what bout the tan and white wire that was in the tbi harness use it or not

 

okay i ran a wire inside the car and tied the relay wires into it the car is charging now and my gauge is working but my coolant fan is not coming on even if i turn the ac on any suggestions?

 

 

gonna play with it later will let you know how it goes